There are no installation instructions, but if you can replace your piston, you can install this kit. If you don't have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual. Race Head V2 - Aluminum roller rockers, 28.5mm intake valve, 23.5mm exhaust valve, 26mm intake port, 23mm exhaust port, covers and hardware included (valve, seals, and springs installed). 52mm Aluminum Steel Sleeve Cylinder. 52mm High Compression Light Weight Piston Kit (91+ octane pump fuel friendly).
51mm TB Stroker crank making this kit 108cc. 52mm Top End Gasket, clutch cover, and center case gasket. We stock all the replacement parts for this kit, no ridiculous wait times or prices for these High Performance spares. Note: Only for use with 1988 and newer Honda Z50, CT70, XR50, XR70, CRF50, & CRF70.1991 and older engines will need TBW0861. Kit Contents by Part Number: TBW0750, TBW0755, TBW0752, TBW1441, TBW0753, TBW0859, TBW0156, TBW0287, TBW0334, TBW0319. Have any questions or concerns? Please send us a message and we will gladly help with any questions you may have. We have been in the motorcycle parts industry for over a decade and are here to help.